Looping between charging/Android logos - Xiaomi Mi A2 / 6X Questions & Answers

Hi, so I got an A2 which has been submerged in water for a while. I was not turning on at all (just showing the white led light blinking), so I bought a new USB part and battery for it, replaced it, and now it seems to react.
However, it keeps switching between the charging logo for a second, then vibrates and shows the Android One logo (this switch goes on and on forever). I have tried the button combo to go into recovery, but as soon as the Android recovery boot logo appears, it'll still timeout into the charging logo.
Does anyone know what may be going on? Or what component to replace? (the phone was only days old when it accidentally got soaked, so everything is new and it's a shame to just throw it away)

Related

My N7 just died

My N7 was sitting in front of me on my desk, and it made a noise very similar to the USB disconnect noise in Windows 8, which is something i have never heard any android device make. I picked it up, and the backlight was on, but not the screen. The lock button was not responsive, so i proceed to reset it. Also unresponsive. I held down both vol buttons and power for several seconds, and the "Google" splash screen appeared, but it did not enter recovery. The boot logo appeared, and it sat there looping for about 3 minutes (considerably longer than normal), then the screen shut off and individual pixel started flashing, like static cling in the dark. I hooked it up to my comp, i have no adb access. It's unresponsive during boot and while it's doing the flickering thing. I can repeat this cycle of splash screen, boot logo, then wild flickering each time, but cannot get adb regardless.
I was running Franco kernel with stock rom, no overclocking or anything, flashed shortly after i got. It's been faultless for months. I'm almost certain it's toast so i'm not expecting salvation from XDA, but thought i'd get some input if anyone is curious.
tdrussell said:
My N7 was sitting in front of me on my desk, and it made a noise very similar to the USB disconnect noise in Windows 8, which is something i have never heard any android device make. I picked it up, and the backlight was on, but not the screen. The lock button was not responsive, so i proceed to reset it. Also unresponsive. I held down both vol buttons and power for several seconds, and the "Google" splash screen appeared, but it did not enter recovery. The boot logo appeared, and it sat there looping for about 3 minutes (considerably longer than normal), then the screen shut off and individual pixel started flashing, like static cling in the dark. I hooked it up to my comp, i have no adb access. It's unresponsive during boot and while it's doing the flickering thing. I can repeat this cycle of splash screen, boot logo, then wild flickering each time, but cannot get adb regardless.
I was running Franco kernel with stock rom, no overclocking or anything, flashed shortly after i got. It's been faultless for months. I'm almost certain it's toast so i'm not expecting salvation from XDA, but thought i'd get some input if anyone is curious.
Click to expand...
Click to collapse
ask franco if fsync is enabled default and if is barrier=0 in the kernel
Try holding in the power button for 45-60 seconds. If that doesn't work then Plug in the unit, and let it try to charge for an hour or two. Then try holding in the power button for 45-60 seconds again.
There seems to be a glitch where the unit will die when the battery is low. Some people have report something similar when the unit was ~23% battery life.

HELP! New Note 4 has black screen and won't display anything.

It boots up but nothing on the screen since I got it yesterday. Shows nothing when I plug in charger with phone off and doesn't show samsung logo whole booting up. Screen is completely black. The notification led, recent apps, and back button do light up and I am able to tap the screen and have it register but the screen just doesn't display anything.
Tried booting into fastboot and nothing, tried booting into download mode and nothing, tried removing battery and holding power for over a minute and nothing.
Help me before I have to return it. I g out. It for 380$ new from a recent cowboom.com deal and they're out of stock so they with be able to replace it.
One thing i did notice is that, even though it boots up and I can hear the water drop sound when pressing the back button, as soon as I hit the power button again, it reboots.
Maybe a fresh os install will help?
Return and get refund or send it to samsung repair center.
Looks like a digitizer problem.
I wouldn't send it to Samsung. I sent mine in and was returned in worst condition.

H811 won't boot after multiple battery pulls... HELP!

So I can't boot my phone. Previously stable h811, unlocked bootloader running latest 20i Extreme 3.3 MM with G4 Tweaksbox. I have a Qi/NFC sticker on the back, but which has worked flawlessly and was not in use when the phone died. Here's what happened and what I have attempted.
Problem began when phone simply went black. The only thing running was Maps, which had a route displayed but was not in navigation mode. The screen went dark like normal, and when I went to wake the phone, nothing happened. I was in the car and tried plugging in the car charger and did not get a charge light. Pulled the battery and was unable to get a response. The phone and battery were quite warm.
When I got home, I tried a different battery, and the screen turned on to the LG initial boot screen, but nothing else happened.
After many battery pulls and attempts to boot into recovery, I tried it with the phone plugged into the computer. Finally, it showed the charging screen and light, and after several more attempts- pulling the battery and inserting it, then powering on, it appeared to be booting, (boot animation started, but then looped and froze on the initial boot screen (with bootloader state: bootloader unlocked in the upper corner). After another round of attempt/battery pull, it booted all the way up, but at that point I had my sim pulled. Pulled the battery and tried to restart and it froze on the initial boot screen again. Haven't been able to get into recovery at all, can't get into download, can't boot past the initial LG screen. Sometimes it loops, sometimes it just hangs. Nothing I do pressing combos of buttons, plugged into computer or unplugged, seems to change anything. The very farthest I've gotten is the breathe blue light before the boot animation, but then it looped. Now it's boot looping plugged into the computer.
Any ideas? I'm at a total loss.
bdportil said:
So I can't boot my phone. Previously stable h811, unlocked bootloader running latest 20i Extreme 3.3 MM with G4 Tweaksbox. I have a Qi/NFC sticker on the back, but which has worked flawlessly and was not in use when the phone died. Here's what happened and what I have attempted.
Problem began when phone simply went black. The only thing running was Maps, which had a route displayed but was not in navigation mode. The screen went dark like normal, and when I went to wake the phone, nothing happened. I was in the car and tried plugging in the car charger and did not get a charge light. Pulled the battery and was unable to get a response. The phone and battery were quite warm.
When I got home, I tried a different battery, and the screen turned on to the LG initial boot screen, but nothing else happened.
After many battery pulls and attempts to boot into recovery, I tried it with the phone plugged into the computer. Finally, it showed the charging screen and light, and after several more attempts- pulling the battery and inserting it, then powering on, it appeared to be booting, (boot animation started, but then looped and froze on the initial boot screen (with bootloader state: bootloader unlocked in the upper corner). After another round of attempt/battery pull, it booted all the way up, but at that point I had my sim pulled. Pulled the battery and tried to restart and it froze on the initial boot screen again. Haven't been able to get into recovery at all, can't get into download, can't boot past the initial LG screen. Sometimes it loops, sometimes it just hangs. Nothing I do pressing combos of buttons, plugged into computer or unplugged, seems to change anything. The very farthest I've gotten is the breathe blue light before the boot animation, but then it looped. Now it's boot looping plugged into the computer.
Any ideas? I'm at a total loss.
Click to expand...
Click to collapse
Im bricked myself from another issue but i think there is a black screen of death issue with some of the g4s
Try to boot download mode and re flash stock kdz with Lg up tool
You will loose all data though.
Good luck on help here noones helped me at all .
The g4 is just not a good device or user friendly
Sent from my LGMS631 using XDA Free mobile app
Black screen of death here too
Yesterday, I was using Chrome, site loading, screen just went black. I had about 1/2 battery at the time. I figured maybe the battery was just reporting wrong. When I got home, swapped batteries, same issue. I've been able to get into recovery and attempt a factory reset a couple of times (after many frustrating attempts.) The phone seems to only be able to be powered on for about 30 seconds before it goes black again. I'm going to attempt to fix with download mode now. If anyone else has solved a similar issue, any tips would be appreciated.
Hardware appears to be at fault!
Check this out, people!
http://www.androidauthority.com/lg-admits-g4-bootloop-problem-hardware-fault-669603/
Spread the word. Sounds like this is our problem. Apparently affecting mostly models with serial numbers starting 505xxxxx... which is what mine is. Called LG and they issued an RA# and shipping label to send it to them for service. I'm a little concerned since I didn't buy mine through a carrier, but this seems more like something of a soft recall than strictly a warranty issue, so I'm hoping they fix it no questions asked. I'll keep you guys posted on the progress.
Same thing happened to me today. My phone randomly shut off and it won't boot. Its stuck at the Android logo. I wasn't messing around with it. Just normal use (Snapchat, youtube). I tried booting into recovery but it just goes back to the android screen LG logo and keeps looping. I at least want to wipe the phone before I send it (personal info).
Same here. Mine has serial number starting 505, was purchased back at end of 5/2015 with not problems until this. I filled out the warranty repair form on LGs website and they sent me an RMA with label to get it fixed. I sent it in, they sent it back, and the only thing I see is on one sheet they printed out and included in the package said 'replaced board'. However, when I started up the phone it looked like new initialization with xx of yy apps initializing and then it began bootlooping with the LG splash screen. So frustrating!
So, this time I contacted t-mobile via their online chat, and did a warranty exchange through them. They will send me a replacement LG G4 next day ups air and I will send them the defective one for them to claim warranty themselves. We'll see where this goes. I might just take the replacement unit and do a tmobile jump exchange to another device. I wanted to wait for the new line of HTC nexus phones that are rumored for this year (and was loving the LG 4 until it died), but I might need to just jump twice this year and go for something like the new Samsung S7 of new LG G5 now and then again switch to HTC nexus once that comes out.
Sent mine to LG, and they fixed under warranty with no questions asked. Got it back within a week. All good now.

Galaxy S4 wont boot after LCD replacment

Hi,so i replaced LCD in my I9515, I've been doing this with youtube tutorial. Before 1-2 weeks ago my phone boot normally but i couldnt see anything due to broken LCD. In store, guy took my battery and connected it to a naked motherboard and lcd to see if it's working. After replacment when i try to boot it's stuck on Samsung Galaxy S4 logo and wont boot further. I can go into download mode, computer and odin are seeing connected phone, but i cannot boot into recovery it's just showing blue "booting recovery" and nothing happening. When I charging it, the grey battery pops out, but when i unplug it the battery is still there like it's still connected. Sometimes when i try to turn it off when it's stuck on galaxy s4 logo it's turning off then on by itself like 2 or 3 times. Any ideas how to fix it? It's hardware or software problem? In a minutes i'll try to flash stock soft from sammobile. Phone was never rooted and no custom roms were installed.
EDIT Flashing with ODIN not solved the problem
EDIT Now phone doesnt show battery when connected just one vibrate and screen is blank, and when i try to boot it while connected it's just vibrating and still black screen. When it was connected to pc it was vibrating every 2 seconds. When I try to boot it's by itself trying to boot recovery but it's not booting and blue "recovery booting" just hang on top of screen and nothing happening.
Wrong forum ?

Bricked my phone (Stuck WSOD while booting up)

FML.... Here goes some background story (lazy to read? skip to next paragraph). One day found my Nokia 7 plus bent a bit (top right corer) it was working perfectly fine, but my OCD made me "fix it"... After bending phone the other way, to straighten it - Power button stuck (pushed in). Phone got into constant restart loop, and eventually ended up in download mode. Since I couldn't do anything - left it as is until battery died. After gathering all the tools, I've dissembled my phone, fixed stuck power button, charged battery, turned it on - I found out that I cracked the screen.... Bought new screen and replaced it.
Now when I turn on my phone (in fact it turns on automatically, after power off it will turn on again after few seconds), it vibrates and goes to WSOD (white screen of death)
I can't enter recovery mode
I've tried workaround as per this thread: https://forum.xda-developers.com/nokia-7-plus/help/device-stuck-download-mode-t3934323
fastboot devices - returns my phone, however adb devices - does not.
Any ideas how I can get back to life?

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